Microprocessor is the brain of computer, which does all the work. It is a computer processor that incorporates all the functions of CPU (Central Processing Unit) on a single IC (Integrated Circuit) or at the most a few ICs. Microprocessors were first introduced in early 1970s. 4004 was the first general purpose microprocessor used by Intel […]
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Primary Memory
Memory is required in computers to store data and instructions. Memory is physically organized as a large number of cells that are capable of storing one bit each. Logically they are organized as groups of bits called words that are assigned an address. Data and instructions are accessed through these memory address. The speed with which these memory […]
Secondary Memory
You know that processor memory, also known as primary memory, is expensive as well as limited. The faster primary memory are also volatile. If we need to store large amount of data or programs permanently, we need a cheaper and permanent memory. Such memory is called secondary memory. Here we will discuss secondary memory devices that […]
Fundamental Concept
A computer is basically a programmable machine capable to perform arithmetic and logical operations automatically and sequentially. It is also known as a data processor, as it can store, process, and retrieve data as per the wish of the user. (toc) Computer Data processing involves the following three activities − Input of data Manipulation/processing of […]
Computer’s Input/Output Ports
A connection point that acts as interface between the computer and external devices like mouse, printer, modem, etc. is called port. Ports are of two types (toc) Internal port − It connects the motherboard to internal devices like hard disk drive, CD drive, internal modem, etc. External port − It connects the motherboard to external devices like modem, […]
Role of Computer in Today’s World
In today’s world, for almost every activity whether personal (for example, operating personal savings bank account) or business-related (for example, selling any product or services); in some or the other way, we rely on the computer system. (toc) Due to the growing dependency on computers, every small and big organizations and other business companies have […]
Computer System
A computer system is an integrated form of different components that work together to give a desirable result. It has different component and each works for a specific purpose; however, they generate a common result as required by the user. (toc) Computer System Components of Computer System Let us now understand the following basic components […]
Computer Programming Languages
The computer system is simply a machine and hence it cannot perform any work; therefore, in order to make it functional different languages are developed, which are known as programming languages or simply computer languages. (toc) Over the last two decades, dozens of computer languages have been developed. Each of these languages comes with its […]
Operating System
An operating system is the fundamental basis of all other application programs. Operating system is an intermediary between the users and the hardware. (toc) Operating system controls and coordinates the use of hardware among application programs. The major services of an operating system are − Memory management Disk access Creating user interface Managing the different […]
Internet
Internet is a system that interconnects the different computer systems across the world. It uses the Internet protocol suite to link devices located in different corners of the world. (toc) The Internet system carries an extensive range of information resources and services including World Wide Web (WWW), telephony, electronic mail, etc. It uses standard internet […]